Dark Passages: Tristan & Karen: The Brethren Series, Book 4 (Unabridged‪)‬

Tristan Morin is a vampire on a mission: to not fall in love with Karen Pierce. To do so would prove that humans and Brethren were meant to be physically and emotionally bound to each other - something he, as a full-blooded Brethren, refuses to believe. It would be so much easier if Karen wasn't beautiful. And if there wasn't something about her that draws him like a moth to a flame.